Skraps,
Welcome back. Sounds like you are getting some traction on the project. Sure would like to see the pics but the webshot link is not bringing them up.
As for the radiator you should be able to find an aftermarket one for less that $300 that will do the chore but the original radiator may do just fine if it was for a V8. I have also seen radiators from other vehicles retro fitted into that series.
Sounds like you have a lot to accomplish in a short period of time. Good luck and get those pictures working so we can enjoy your efforts.